* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Win98 Colors */
    --win98-bg: #c0c0c0;
    --win98-dark: #808080;
    --win98-darker: #404040;
    --win98-light: #dfdfdf;
    --win98-lighter: #ffffff;
    --win98-blue: #000080;
    --win98-blue-light: #1084d0;
    --win98-text: #000000;

    /* Canvas */
    --canvas-bg: #1a1a1a;
    --mobile-bg: #A8A5F6;

    /* Font */
    --win98-font: 'Segoe UI', 'MS Sans Serif', Tahoma, sans-serif;
}

body {
    font-family: var(--win98-font);
    font-size: 11px;
    background: var(--canvas-bg);
    color: var(--win98-text);
    overflow: hidden;
    cursor: default;
}

/* ========== CANVAS AREA ========== */
.canvas-area {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--canvas-bg);
    background-image:
        radial-gradient(circle at 50% 50%, #2a2a2a 0%, #1a1a1a 100%);
}

.canvas-container {
    background: white;
    box-shadow:
        0 0 0 1px rgba(0,0,0,0.3),
        0 20px 60px rgba(0,0,0,0.5);
}

#canvas {
    display: block;
    max-width: calc(100vw - 280px);
    max-height: calc(100vh - 40px);
}

/* ========== WIN98 TOOLBAR ========== */
.win98-toolbar {
    position: fixed;
    top: 20px;
    left: 20px;
    width: 240px;
    background: var(--win98-bg);
    border: 2px solid;
    border-color: var(--win98-lighter) var(--win98-darker) var(--win98-darker) var(--win98-lighter);
    box-shadow:
        inset 1px 1px 0 var(--win98-light),
        2px 2px 8px rgba(0,0,0,0.3);
    font-size: 11px;
    user-select: none;
    z-index: 1000;
}

.win98-toolbar.minimized .win98-content {
    display: none;
}

/* ========== TITLEBAR ========== */
.win98-titlebar {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 2px 3px;
    background: linear-gradient(90deg, var(--win98-blue) 0%, var(--win98-blue-light) 100%);
    color: white;
    font-weight: bold;
    cursor: move;
}

.win98-titlebar-icon {
    font-size: 12px;
    margin-right: 2px;
}

.win98-title {
    flex: 1;
    font-size: 11px;
    text-shadow: 1px 1px 0 rgba(0,0,0,0.3);
}

.win98-titlebar-buttons {
    display: flex;
    gap: 2px;
}

.win98-titlebar-btn {
    width: 16px;
    height: 14px;
    background: var(--win98-bg);
    border: 2px solid;
    border-color: var(--win98-lighter) var(--win98-darker) var(--win98-darker) var(--win98-lighter);
    font-size: 9px;
    font-weight: bold;
    line-height: 1;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    color: black;
}

.win98-titlebar-btn:active {
    border-color: var(--win98-darker) var(--win98-lighter) var(--win98-lighter) var(--win98-darker);
    padding: 1px 0 0 1px;
}

.mobile-info-btn {
    display: none;
}

.win98-titlebar-btn.win98-close:hover {
    background: #c0c0c0;
}

/* ========== CONTENT ========== */
.win98-content {
    padding: 8px;
}

/* ========== SECTIONS ========== */
.win98-section {
    margin-bottom: 6px;
}

.win98-section:last-child {
    margin-bottom: 0;
}

.win98-divider {
    height: 2px;
    margin: 8px 0;
    border-top: 1px solid var(--win98-dark);
    border-bottom: 1px solid var(--win98-lighter);
}

.win98-divider:last-child {
    margin-bottom: 0;
}

.win98-label {
    font-weight: bold;
    margin-bottom: 4px;
}

.win98-label-inline {
    min-width: 42px;
    display: inline-block;
    align-self: center;
}

/* ========== ROWS ========== */
.win98-row {
    display: flex;
    align-items: stretch;
    gap: 6px;
    margin-bottom: 6px;
}

.win98-row:last-child {
    margin-bottom: 0;
}

.win98-field-group {
    display: flex;
    align-items: stretch;
    gap: 4px;
}

.win98-x {
    color: var(--win98-dark);
    font-weight: bold;
    align-self: center;
}

/* ========== INPUTS ========== */
.win98-input {
    padding: 3px 4px;
    background: white;
    border: 2px solid;
    border-color: var(--win98-dark) var(--win98-lighter) var(--win98-lighter) var(--win98-dark);
    font-family: var(--win98-font);
    font-size: 11px;
}

.win98-input:focus {
    outline: none;
}

.win98-input-small {
    width: 40px;
    text-align: center;
}

.win98-select {
    flex: 1;
    padding: 2px 4px;
    background: white;
    border: 2px solid;
    border-color: var(--win98-dark) var(--win98-lighter) var(--win98-lighter) var(--win98-dark);
    font-family: var(--win98-font);
    font-size: 11px;
    cursor: pointer;
}

.win98-color {
    width: 32px;
    min-height: 22px;
    padding: 0;
    border: 2px solid;
    border-color: var(--win98-dark) var(--win98-lighter) var(--win98-lighter) var(--win98-dark);
    cursor: pointer;
}

.win98-color::-webkit-color-swatch-wrapper {
    padding: 1px;
}

.win98-color::-webkit-color-swatch {
    border: 1px solid var(--win98-dark);
}

/* ========== BUTTONS ========== */
.win98-btn {
    padding: 4px 8px;
    background: var(--win98-bg);
    border: 2px solid;
    border-color: var(--win98-lighter) var(--win98-darker) var(--win98-darker) var(--win98-lighter);
    font-family: var(--win98-font);
    font-size: 11px;
    cursor: pointer;
    white-space: nowrap;
}

.win98-btn:hover {
    background: var(--win98-light);
}

.win98-btn:active {
    border-color: var(--win98-darker) var(--win98-lighter) var(--win98-lighter) var(--win98-darker);
    padding: 5px 7px 3px 9px;
}

.win98-btn-wide {
    width: 100%;
    margin-bottom: 6px;
}

.win98-btn-wide:last-child {
    margin-bottom: 0;
}

.win98-btn-small {
    padding: 2px 6px;
    font-size: 10px;
}

.win98-btn-primary {
    font-weight: bold;
}

/* ========== SLIDERS ========== */
.win98-slider-row {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 4px;
}

.win98-slider {
    flex: 1;
    height: 21px;
    -webkit-appearance: none;
    appearance: none;
    background: transparent;
    cursor: pointer;
}

.win98-slider::-webkit-slider-runnable-track {
    height: 4px;
    background: var(--win98-bg);
    border: 1px solid;
    border-color: var(--win98-dark) var(--win98-lighter) var(--win98-lighter) var(--win98-dark);
}

.win98-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 11px;
    height: 21px;
    margin-top: -9px;
    background: var(--win98-bg);
    border: 2px solid;
    border-color: var(--win98-lighter) var(--win98-darker) var(--win98-darker) var(--win98-lighter);
    cursor: ew-resize;
}

.win98-slider::-moz-range-track {
    height: 4px;
    background: var(--win98-bg);
    border: 1px solid var(--win98-dark);
}

.win98-slider::-moz-range-thumb {
    width: 11px;
    height: 21px;
    background: var(--win98-bg);
    border: 2px solid;
    border-color: var(--win98-lighter) var(--win98-darker) var(--win98-darker) var(--win98-lighter);
    border-radius: 0;
    cursor: ew-resize;
}

.win98-value {
    min-width: 20px;
    text-align: right;
    font-family: 'Courier New', monospace;
    font-size: 10px;
}

/* ========== CHECKBOX ========== */
.win98-checkbox {
    display: flex;
    align-items: center;
    align-self: center;
    gap: 6px;
    cursor: pointer;
    margin-bottom: 4px;
}

.win98-checkbox input {
    display: none;
}

.win98-checkmark {
    width: 13px;
    height: 13px;
    background: white;
    border: 2px solid;
    border-color: var(--win98-dark) var(--win98-lighter) var(--win98-lighter) var(--win98-dark);
    position: relative;
}

.win98-checkbox input:checked + .win98-checkmark::after {
    content: '✓';
    position: absolute;
    top: -2px;
    left: 1px;
    font-size: 12px;
    font-weight: bold;
}

/* ========== DROPZONE ========== */
.win98-dropzone {
    padding: 12px 8px;
    background: white;
    border: 2px solid;
    border-color: var(--win98-dark) var(--win98-lighter) var(--win98-lighter) var(--win98-dark);
    text-align: center;
    cursor: pointer;
    margin-bottom: 6px;
}

.win98-dropzone:hover {
    background: #ffffcc;
}

.win98-dropzone.dragover {
    background: #ccffcc;
}

/* ========== THUMBNAILS ========== */
.win98-thumbs {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-top: 6px;
}

.win98-thumbs:empty {
    display: none;
}

.win98-thumb-wrap {
    position: relative;
    display: inline-block;
}

.win98-thumb-wrap img {
    width: 32px;
    height: 32px;
    object-fit: cover;
    border: 2px solid;
    border-color: var(--win98-dark) var(--win98-lighter) var(--win98-lighter) var(--win98-dark);
    display: block;
}

.win98-thumb-remove {
    position: absolute;
    top: -4px;
    right: -4px;
    width: 14px;
    height: 14px;
    background: #ff3333;
    color: white;
    border: 1px solid #cc0000;
    border-radius: 50%;
    font-size: 9px;
    line-height: 12px;
    text-align: center;
    cursor: pointer;
    padding: 0;
    display: none;
}

.win98-thumb-wrap:hover .win98-thumb-remove {
    display: block;
}

/* ========== INFO BUTTON ========== */
.info-btn {
    position: fixed;
    bottom: 12px;
    right: 12px;
    width: 22px;
    height: 22px;
    background: var(--win98-bg);
    border: 2px solid;
    border-color: var(--win98-lighter) var(--win98-darker) var(--win98-darker) var(--win98-lighter);
    font-family: var(--win98-font);
    font-size: 11px;
    font-weight: bold;
    cursor: pointer;
    z-index: 1500;
    padding: 0;
    line-height: 18px;
    text-align: center;
    color: var(--win98-text);
}

.info-btn:hover {
    background: var(--win98-light);
}

.info-btn:active {
    border-color: var(--win98-darker) var(--win98-lighter) var(--win98-lighter) var(--win98-darker);
}

.info-popup {
    display: none;
    position: fixed;
    bottom: 40px;
    right: 12px;
    background: var(--win98-bg);
    border: 2px solid;
    border-color: var(--win98-lighter) var(--win98-darker) var(--win98-darker) var(--win98-lighter);
    padding: 10px 12px;
    font-family: var(--win98-font);
    font-size: 11px;
    max-width: 240px;
    z-index: 1500;
    box-shadow: 2px 2px 6px rgba(0,0,0,0.3);
    line-height: 1.5;
}

.info-popup.visible {
    display: block;
}

.info-popup a {
    color: var(--win98-blue);
    text-decoration: underline;
}

.info-popup a:hover {
    color: var(--win98-blue-light);
}

/* ========== COLOR ROW ========== */
.color-row {
    align-items: center !important;
    gap: 3px !important;
}

.color-row .color-bg-label {
    min-width: auto !important;
    margin-right: 1px;
}

.color-bg-input {
    width: 22px !important;
    height: 22px !important;
    min-height: 22px !important;
    border-radius: 0;
    -webkit-appearance: none;
    appearance: none;
    margin-right: 6px;
}

#regenerate-colors {
    height: 22px;
    padding: 0 6px;
    display: flex;
    align-items: center;
    font-size: 11px;
    margin-right: 3px;
}

.color-swatches {
    display: flex;
    gap: 3px;
    align-items: center;
}

.color-swatch {
    width: 22px;
    height: 22px;
    padding: 0;
    border: 2px solid;
    border-color: var(--win98-dark) var(--win98-lighter) var(--win98-lighter) var(--win98-dark);
}

/* ========== MOBILE QUICK ACTIONS ========== */
.mobile-actions {
    display: none;
}

@media (max-width: 600px) {
    .mobile-actions {
        display: none;
        position: fixed;
        top: 16px;
        left: 8px;
        right: 8px;
        gap: 8px;
        z-index: 900;
    }

    body.generated .mobile-actions {
        display: flex;
    }

    .mobile-action-btn {
        flex: 1;
        padding: 7px 10px;
        background: var(--win98-bg);
        border: 2px solid;
        border-color: var(--win98-lighter) var(--win98-darker) var(--win98-darker) var(--win98-lighter);
        font-size: 12px;
        font-family: var(--win98-font);
        font-weight: bold;
        cursor: pointer;
        box-shadow: 2px 2px 6px rgba(0,0,0,0.3);
        white-space: nowrap;
    }

    .mobile-action-btn:active {
        border-color: var(--win98-darker) var(--win98-lighter) var(--win98-lighter) var(--win98-darker);
    }
}

/* ========== TOAST ========== */
.toast-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 2000;
}

.toast {
    background: var(--win98-bg);
    border: 2px solid;
    border-color: var(--win98-lighter) var(--win98-darker) var(--win98-darker) var(--win98-lighter);
    padding: 8px 12px;
    margin-top: 8px;
    font-family: var(--win98-font);
    font-size: 11px;
    box-shadow: 2px 2px 4px rgba(0,0,0,0.3);
    animation: toast-in 0.2s ease-out;
}

.toast.fade-out {
    animation: toast-out 0.2s ease-out forwards;
}

@keyframes toast-in {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes toast-out {
    from {
        opacity: 1;
        transform: translateY(0);
    }
    to {
        opacity: 0;
        transform: translateY(-10px);
    }
}

/* ========== MOBILE ========== */
@media (max-width: 600px) {
    body {
        font-size: 13px;
        background: var(--mobile-bg);
    }

    /* Initial state: hide canvas, show purple bg */
    .canvas-area {
        opacity: 0;
        pointer-events: none;
        transition: opacity 0.3s ease;
        background: var(--canvas-bg);
    }

    body.generated {
        background: var(--canvas-bg);
    }

    body.generated .canvas-area {
        opacity: 1;
        pointer-events: auto;
        align-items: flex-start;
        padding-top: 60px;
    }

    .canvas-container {
        max-width: calc(100vw - 16px);
    }

    #canvas {
        max-width: 100%;
        max-height: calc(100vh - 120px);
    }

    /* Initial: centered Win98 window */
    .win98-toolbar {
        position: fixed;
        top: 50%;
        left: 24px;
        right: 24px;
        bottom: auto;
        width: auto;
        transform: translateY(-50%);
        max-height: calc(100vh - 48px);
        display: flex;
        flex-direction: column;
        transition: all 0.3s ease;
    }

    /* After generate: bottom sheet */
    body.generated .win98-toolbar {
        top: auto;
        left: 0;
        right: 0;
        bottom: 0;
        transform: none;
        width: 100%;
        max-width: none;
        border-radius: 16px 16px 0 0;
        border-top: 3px solid var(--win98-lighter);
        box-shadow: 0 -4px 20px rgba(0,0,0,0.4);
    }

    body.generated .win98-toolbar::before {
        content: '';
        position: absolute;
        top: 8px;
        left: 50%;
        transform: translateX(-50%);
        width: 40px;
        height: 4px;
        background: var(--win98-dark);
        border-radius: 2px;
    }

    .win98-titlebar {
        padding: 4px 6px;
        cursor: default;
    }

    body.generated .win98-titlebar {
        padding: 16px 10px 6px;
        border-radius: 16px 16px 0 0;
        cursor: pointer;
    }

    .win98-title {
        font-size: 14px;
    }

    .win98-titlebar-btn {
        width: 24px;
        height: 20px;
        font-size: 12px;
    }

    .win98-content {
        padding: 10px;
        flex: 1;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }

    body.generated .win98-content {
        max-height: 50vh;
        flex: none;
        padding: 8px 10px;
        overflow-y: auto;
    }

    body.generated .win98-toolbar {
        overflow: hidden;
    }

    /* Compact mobile touch targets */
    .win98-btn {
        padding: 8px 12px;
        font-size: 13px;
        min-height: 36px;
    }

    .win98-btn-wide {
        margin-bottom: 6px;
    }

    .win98-input {
        padding: 6px 8px;
        font-size: 14px;
        min-height: 36px;
    }

    .win98-input-small {
        width: 52px;
    }

    .win98-select {
        padding: 6px 8px;
        font-size: 14px;
        min-height: 36px;
    }

    .win98-color {
        width: 36px;
        min-height: 36px;
    }

    .color-bg-input {
        width: 32px !important;
        height: 32px !important;
        min-height: 32px !important;
        border-radius: 0;
        -webkit-appearance: none;
        appearance: none;
    }

    #regenerate-colors {
        height: 32px;
        padding: 0 8px;
        font-size: 13px;
    }

    .color-swatch {
        width: 32px;
        height: 32px;
    }

    .win98-slider {
        height: 32px;
    }

    .win98-slider::-webkit-slider-thumb {
        width: 20px;
        height: 32px;
        margin-top: -14px;
    }

    .win98-slider::-moz-range-thumb {
        width: 20px;
        height: 32px;
    }

    .win98-slider::-webkit-slider-runnable-track {
        height: 6px;
    }

    .win98-slider::-moz-range-track {
        height: 6px;
    }

    .win98-checkbox {
        padding: 4px 0;
        font-size: 13px;
    }

    .win98-checkmark {
        width: 20px;
        height: 20px;
    }

    .win98-checkbox input:checked + .win98-checkmark::after {
        font-size: 16px;
        top: -1px;
        left: 3px;
    }

    .win98-label,
    .win98-label-inline {
        font-size: 13px;
    }

    .win98-label-inline {
        min-width: 48px;
    }

    .win98-value {
        font-size: 12px;
        min-width: 24px;
    }

    .win98-row {
        gap: 8px;
        margin-bottom: 6px;
    }

    .win98-slider-row {
        gap: 8px;
        margin-bottom: 4px;
    }

    .win98-divider {
        margin: 8px 0;
    }

    .win98-dropzone {
        padding: 14px 10px;
        font-size: 13px;
        margin-bottom: 6px;
    }

    .win98-thumb-wrap img {
        width: 40px;
        height: 40px;
    }

    .win98-thumb-remove {
        display: block;
        width: 18px;
        height: 18px;
        font-size: 11px;
        line-height: 16px;
        top: -5px;
        right: -5px;
    }

    .win98-section {
        margin-bottom: 6px;
    }

    body.generated .win98-section {
        margin-bottom: 4px;
    }

    body.generated .win98-divider {
        margin: 6px 0;
    }

    body.generated .win98-row {
        margin-bottom: 4px;
    }

    body.generated .win98-slider-row {
        margin-bottom: 2px;
    }

    body.generated .win98-dropzone {
        padding: 10px 8px;
        margin-bottom: 4px;
    }

    /* Actions row: side by side on mobile */
    .win98-actions {
        display: flex;
        gap: 6px;
    }

    .win98-actions .win98-btn-wide {
        flex: 1;
        width: auto;
        margin-bottom: 0;
        font-weight: bold;
    }

    /* Hide fixed info button on mobile, use titlebar one instead */
    .info-btn {
        display: none;
    }

    .mobile-info-btn {
        display: flex;
        font-weight: bold;
    }

    .info-popup {
        position: fixed;
        top: auto;
        bottom: auto;
        right: 10px;
        left: 10px;
        max-width: none;
        transition: none;
        z-index: 1500;
    }

    /* Toast positioning for mobile */
    .toast-container {
        bottom: auto;
        top: 20px;
        right: 10px;
        left: 10px;
    }

    .toast {
        font-size: 12px;
        padding: 8px 12px;
    }
}

/* Small phones */
@media (max-width: 380px) {
    .win98-content {
        padding: 8px;
    }

    .win98-btn {
        padding: 6px 10px;
        font-size: 12px;
    }

    .win98-input-small {
        width: 46px;
    }

    .win98-label-inline {
        min-width: 42px;
        font-size: 12px;
    }
}